Reliability Measurement for Multistate Manufacturing Systems with Failure Interaction

Reliability is one of the important factors for manufacturing system. Most researches assume that the failure is independent and the components only have two states, which will lead to inaccurate results. In this paper, a reliability model is proposed considering both failure interaction and multi-state property of the manufacturing system. Starting with a two-component system, a function of state probability under the impact of failure interaction is established after the analysis of failure interaction. Then the multi-component system is decomposed into several subsystems and the failure interaction coefficient is estimated in each subsystem with a Copula function and the Grey model method. Finally, the reliability model is realized with the performance generating function which is derived with the UGF technique and failure interaction coefficients. An example of a cylinder engine manufacturing system is studied, and the result is closer to the practical data

Identification varietale des orges par electrophorese. Description de 280 varietes

National audienceTwo hundred and eighty varieties of barley are described for their seed protein patterns using SDS-PAGE. This technique enables us to make 86 groups. By the additional use of esterases and acid phosphatases, it is possible to make an identification key for the 12 winter varieties and 13 spring varieties most used in France.Les diagrammes protéiques de 280 variétés d’orge ont été décrits. La technique d’électrophorèse sur gel d’acrylamide contenant du SDS permet de séparer les variétés en 86 groupes. En utilisant en plus les diagrammes des estérases et des phosphatases acides, il est possible d’établir une clé d’identification pour les 12 orges d’hiver et 13 orges de printemps les plus cultivées en France

Cryoablation de la fibrillation atriale (expérience bisontine)

BESANCON-BU Médecine pharmacie (250562102) / SudocPARIS-BIUM (751062103) / SudocSudocFranceF

Use of electrophoresis for variety testing in carrot

International audienc

Évaluation de la prévention primaire de mort subite (MADIT I et MUSTT) sur une population prospective de coronariens stables avec FEVG altérée

BESANCON-BU Médecine pharmacie (250562102) / SudocPARIS-BIUM (751062103) / SudocSudocFranceF

Identification of asparagus varieties by isozyme patterns

International audienc

Delimitation of varietal groups in garlic (Allium sativum L) by morphological, physiological and biochemical characters.

International audienc

Diversity of bacterial communities associated with Ostreopsis cf. ovata blomm in NW Mediterranean (COMBAC project)

International audienc

Physiological changes induced by sodium chloride stress in Aphanizomenon gracile, Cylindrospermopsis raciborskii and Dolichospermum sp.

Due to anthropogenic activities, associated with climate change, many freshwater ecosystems are expected to experience an increase in salinity. This phenomenon is predicted to favor the development and expansion of freshwater cyanobacteria towards brackish waters due to their transfer along the estuarine freshwater-marine continuum. Since freshwater cyanobacteria are known to produce toxins, this represents a serious threat for animal and human health. Saxitoxins (STXs) are classified among the most powerful cyanotoxins. It becomes thus critical to evaluate the capacity of cyanobacteria producing STXs to face variations in salinity and to better understand the physiological consequences of sodium chloride (NaCl) exposure, in particular on their toxicity. Laboratory experiments were conducted on three filamentous cyanobacteria species isolated from brackish (Dolichospermum sp.) and fresh waters (Aphanizomenon gracile and Cylindrospermopsis raciborskii) to determine how salinity variations affect their growth, photosynthetic activity, pigment composition, production of reactive oxygen species (ROS), synthesis of compatible solutes and STXs intracellular quotas. Salinity tolerance was found to be species-specific. Dolichospermum sp. was more resistant to salinity variations than A. gracile and C. raciborskii. NaCl variations reduced growth in all species. In A. gracile, carotenoids content was dose-dependently reduced by NaCl. By contrast, in C. raciborskii and Dolichospermum sp., variations in carotenoids content did not show obvious relationships with NaCl concentration. While in Dolichospermum sp. phycocyanin and phycoerythrin increased within the first 24 h exposure to NaCl, in both A. gracile and C. raciborskii, these pigments decreased proportionally to NaCl concentration. Low changes in salinity did not impact STXs production in A. gracile and C. raciborskii while higher increase in salinity could modify the toxin profile and content of C. raciborskii (intracellular STX decreased while dc-GTX2 increased). In estuaries, A. gracile and C. raciborskii would not be able to survive beyond the oligohaline area (i.e. salinity > 5). Conversely, in part due to its ability to accumulate compatible solutes, Dolichospermum sp. has the potential to face consequent salinity variations and to survive in the polyhaline area (at least up to salinity = 24)